49 square units
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7 * 2 = 14Fourteen square units
The surface area consists of the circular base and the sloped side. By cutting the sloped side from the apex to the base, it can be "flatten" out into a sector of a circle - the length of the arc is the same as the circumference of the base, and it is a fraction of the whole circle with radius of the slant height, which can be applied to the area of the circle. → surface area = area case + area sloped side = π × 5² + (π × 7²) × (2 × π × 5)/(2 × π × 7) = 25π + 49π × 5/7 = 25π + 35π = 60π square units ≈ 188.5 square units
84 square units
7
The measure of the side length of a square that has an area of 49 square centimeters is: 7 cm