Question

A triangle has an area of 20 cm2 and a height of 5 cm. How long id the base?

Answer 1

The base of given triangle is 8 cm.

Further explanation:

The area of triangle is calculated by using two methods

• Hero's formula
• Base and Height

Hero's formula requires all three sides of triangle while we can use only base and height in second formula.

Given

$A = 20\ cm^2\\h = 5\ cm$

As the area of triangle and height are given, then

$A = 0.5*b*h\\20=0.5*b*5\\20=2.5b\\b=\frac{20}{2.5}\\b=8\ cm$

The base of given triangle is 8 cm.

Keywords: Area of triangle, base, height

Learn more about area of triangle at:

• brainly.com/question/5013374
• brainly.com/question/5102020

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