Question

What is the area of the shaded region?

Answer 1

Hello!

Answer:

$\boxed{ \bf The~area~of~the~shaded~region~is~B.~24 mm^2}$

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Explanation:

To find the area of the shaded region, we must find the area of the inner white triangle and subtract it from the area of the outer blue one.

Outer:

A = $\frac{1}{2}$bh

A =  $\frac{1}{2}$(12 · 5)

A =  $\frac{1}{2}$(60)

A = 30 mm²

Inner:

A = $\frac{1}{2}$bh

A = $\frac{1}{2}$(4 · 3)

A = $\frac{1}{2}$(12)

A = 6

30 - 6 = 24