What is the area of 7cm by 4cm?

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28 cm squared
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If a triangle has 7cm and 16cm what is the area?

56 cm 2 * * * * * Only if these are the shorter legs of a right angled triangle and there is no justification for making that assumption. Two sides of a triangle are not sufficient to determine its area.

What is the area of 2cm 2cm 4cm 6cm 2cm 2cm 4cm?

It is impossible to answer this question because the question could refer to an object in 7-dimensional hyperspace or it could be an irregular heptagon (or other possible shapes in 3, 4 5 or 6 dimensions). In anything but 7-d space, its exact shape is indeterminate and so the area cannot be calculat (MORE)

Area of triangle 12Cm 7Cm 10Cm?

90 centimeters * * * * * That is so wrong! Let the three sides be a, b and c and let s = (a+b+c)/2 then area = sqrt[s*(s-a)*(s-b)*(s-c)] So here s = 14.5 cm and so area = sqrt(14.5*2.5*7.5*4.5) = sqrt(1223.4375) = 34.98 sq cm (to 2 dp)

What is the area of a triangle with 5cm and 7cm?

1/2*5*7 = 17.5 square cm * * * * * Only if these are the shorter legs of a right angled triangle and there is no justification for making that assumption. Two sides of a triangle are not sufficient to determine its area.

How do you work out the interior angles and area of a triangle that has sides of 2cm 3cm and 4cm?

Use the cosine rule ref: http://www.bbc.co.uk/schools/gcsebitesize/maths/shapes/furthertrigonometryhirev2.shtml Improved Answers:- Sketch a triangle and label the vertices A, B and C then label the opposite sides a, b, and c respectively with the given dimensions. Use: cos A = (b 2 +c 2 -a 2 (MORE)

What is the area of a rhombus whose height is 7cm and whose parallel sides are 15cm and 17cm?

A rhombus is a quadrilateral whose four sides all have the same length. I think you are describing a trapezoid - a figure with only one set of parallel sides. The formula for finding the area of a trapezoid is: A = (s 1 + s 2 ) / 2 x h where s 1 and s 2 are the parallel sides and h is the (MORE)

How do you calculate the area of a cube if one side is 4cm?

There are a couple of things about a cube that you have to know first, from your general knowledge. -- Each flat side of a cube is a square. -- There are six of them. If each side of the square is 4 cm long, then the area of each square is (4 x 4) = 16 cm 2 . Since there are six of them (MORE)

What is area of rhombus if four sides are 7cm?

There is not suficient information. A measure of the vertical height is required - either implicit or explicit. If you think of a rhombus as 4 sticks of 7 cm hinged at the vertices, you can change the shape to a square (area = 49 sq cm) or squash it right down so that the area gets as close to 0 as (MORE)

How do you find an area of 4cm 10cm 10cm 8cm 7.5cm?

There are 5 linear measures given. If that implies that the shape is a pentagon, there is no way to answer the question with out additional information about the angles in the pentagon. A triangle is the only polygonal shape whose area is uniquely determined by the length of its sides.

What is the area of 4cm 9cm 7cm 5cm?

Since there are 4 lengths given, the shape could be a quadrilateral. Unfortunately, the lengths of the sides is not enough information to determine the shape of a quadrilateral. As an illustration, consider a square of sides 10 cm. Its area is 100 cm 2 . But it can be "distorted" into a rhombus with (MORE)

What is the area of the figure with 25cm 7cm 14cm 12cm 12cm?

Since there are five numbers given it is assumed that the figure in question is a pentagon. Unfortunately, a triangle is the only polygonal shape that is rigid. A pentagon, with all five sides of known lengths is not rigid - it can be flexed in the same way that a square can be flexed into a rhombu (MORE)

What is the area of an equilateral triangle inscribed in a circle of radius 4cm?

Two vertices of the triangle and the centre of the circle make a smaller equilateral triangle with legs of 4 cm and the included angle is 360/3 = 120 degrees.. Therefore the area of each of these sub-triangles = 1/2*ab*sin(C) = 1/2*4*4*sin(120) = 1/2*4*4*1/2 = 4 cm 2 .. And so the area of the insc (MORE)

What is the area of a right triangle that is 4cm by 8cm?

The area of a right-angle triangle is half of the area of a rectangle 8cm x 4cm. Find the rectangle area and divide by half to find the area of the right-angle triangle. Therefore: 8 x 4 / 2 = 16cm 2 * * * * * The above answer assumes that the two given lengths are the shorter legs of the (MORE)

What is the area of 9 cm and 4cm?

The answer depends on the shape - whether the two given lengths are sides of a rectangle, the axes of an ellipse or measures for some other shape.