-3 (-4) × 1 = –16 The answer babesss!!!!!
1 answer:
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Answer:
A = (4.5π + 18) cm²
P = 3π + 6(1 + √2) cm
Step-by-step explanation:
Give figure is a composite structure of one semicircle and one right triangle.
Therefore, area of the figure = Area of the semicircle + Area of the triangle
Area of the given semicircle =
Here r = radius of the semicircle
Area of the semicircle = [Given : AB = BC]
= 4.5π cm²
Area of the triangle =
=
= 18 cm²
Total area = 4.5π + 18
A = (4.5π + 18) cm²
Perimeter of the figure = Circumference of the semicircle + AB + AC
Circumference of the semicircle = πr
= 3π
AB = 6 cm
AC =
=
=
Perimeter 'P' = 3π + 6 +
= 3π + 6(1 + √2) cm