a² = 20²+15²
a = √(625)
a = 25 units.
25 - 20
15 - b
Cross Multiply.
25b = 15*20
b = 12 units.
b is the height of the shaded inscribed region, triangle.
Again;
25 - 20
20 - c
Cross Multiply.
25c = 20*20
c = 16 units.
c is the base of the shaded inscribed region, triangle.
Therefore, area shaded inscribed region, triangle is;
½*bc
= ½*12*16
= 96 square units.
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