If the radius of a circle is 5 cm, what is its area?

Answer: the area of the circle =πr? , where r represents the radius and π is approximately equal to 3. 14. So the area of this circle =3. 14 * 5? = 78.5 square centimeters.

If the base length of a triangle is 10 cm and the height is 6 cm, what is its area?

Answer: area of triangle = length of base * height /2. So the area of this triangle = 10 * 6/2 = 30 square centimeters.

If the side length of a cube is 3 cm, what is its volume?

Answer: volume of cube = side length? . So the volume of this cube =3? = 27 cubic centimeters.

If the first term of a geometric series is 1 and the common ratio is 2, what is its fifth term?

Answer: The formula of geometric series is an = a 1r (n- 1), where an represents the nth term, a 1 represents the first term, and r represents the common ratio. So the fifth term of this geometric series = a12 (5-1) =1* 2 4 =16.

If the base radius of a cone is 6 cm and the height is 8 cm, what is its volume?

Answer: The volume of the cone = 1/3 * πr? H, where r represents the bottom radius and h represents the height. So the volume of this cone = 1/3 * 3. 14 * 6? * 8 ≈ 30 1.44 cubic centimeters.

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