Find the value of the variable or the measure of the missing part of each kite BD=
1 answer:
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Given coordinates of the triangle RST are R(2,1), S(2,-2) and T(-1,-1).
Center of center of dilation is (2,-2).
Because center of dilation is (2,-2) so the coordinates of dilated image S(2,-2) would stay same.
Now, we need to apply rule for dilation with the scale factor 5/3.
<em>Each of R(2,1), and T(-1,-1) would be and R' and T' would be in ratio 5/3.</em>
<em>We will extend RS to 5 units and TS also 5 units.</em>
The new resulting image would be dilated triangle by a scale factor 5/3.
New coordinates would be
R'(2,3), S'(2,-2) and T'(-3,-2)
The area of the shaded portion = 100.48 cm²
Solution:
Radius of the inner circle = 2 cm
Radius of the outer circle = 6 cm
Area of the inner circle =
Area of the inner circle = 12.56 cm²
Area of the outer circle =
Area of the outer circle = 113.04 cm²
Area of the shaded portion = Area of the outer circle – Area of the inner circle
= 113.04 cm² – 12.56 cm²
= 100.48 cm²
Hence the area of the shaded portion = 100.48 cm²