A rectangle was built on the radius of a circle with a diameter of 84 cm, as on the side.
| May 29, 2021 | education
A rectangle was built on the radius of a circle with a diameter of 84 cm, as on the side. The other side is 16 cm smaller. Find the perimeter and area.
1) Find the side of a rectangle built on the radius of a circle with a diameter of 84 cm.
84: 2 = 42 cm.
2) Find the other side of the rectangle if it is known that it is 16 cm smaller.
42 – 16 = 26 cm.
3) Find the area of the rectangle if its sides are known – 42 cm and 26 cm.
42 * 26 = 1092 cm2.
4) Find the perimeter of the rectangle if its sides are known – 42 cm and 26 cm.
(42 + 26) * 2 = 136 cm.
Answer: the area of the rectangle is 1092 cm2; the perimeter of the rectangle is 136 cm.
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