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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)
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∙ 12y ago
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What is the area of a triangle if the base is 12Cm and height 7Cm?
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Is a 5cm by 12cm a right triangle?
If two sides of a triangle have lengths of 5cm and 12cm, then the third side can have any length that's more than 7cm and less than 17cm. If the third side is 13cm, then the triangle is a right triangle.
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Assuming that this is a rectangle, you know that the length (longer side) would be 7cm, and the width (shorter side) would be 6cm. The formula for perimeter is, 2(length) + 2(width) = Perimeter Now we can plug in our numbers, 2(7cm) + 2(6cm) = 14cm + 12cm = 26cm The perimeter would be 26cm, assuming that this is a rectangle ^^
What is the volume that is 10cm 7cm 12cm?
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What is the area of a triangle if the base is 12Cm and height 7Cm?
The area of a triangle = (base * height) / 2. So here, the area = 12 * 7 / 2 = 84/2 = 42 cm2.
Is a 5cm by 12cm a right triangle?
If two sides of a triangle have lengths of 5cm and 12cm, then the third side can have any length that's more than 7cm and less than 17cm. If the third side is 13cm, then the triangle is a right triangle.
Is it possible for a triangle to have sides with lengths 5cm 7cm and 10cm Explain your answer?
if it is a scalene triangle yes scalene triangle have no congruent sides and angles
What area of a parallelogram with the Base of 10cm and height of 7cm?
70 square cm.
What is the perimeter of this shape 7cm x 10cm equal?
what is the perimeter of a rectangle that's 10cm x 7cm
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The area defined by the above measurements is 70 square centimeters.
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The area of triangle is : 42.0
What is the area of a 6.3 and 7cm triangle?
Two sides of a triangle are not sufficient to determine its area.
A triangle's sides are 4cm 7cm and 9cm what is the area?
Area 51.
Is it possible to create a triangle with side lengths 12cm 7cm and 5cm?
No because the sum of the smaller sides must be greater than the longest side
