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### High School Mathematics4.34 Area of Base of Cone

 Example: The diameter of a cone is 14cm. Find its area of base of cone. Solution: Area of base of cone = pi * r2 Given that, The diameter of cone is 14cm. radius (r) = d/2 = 14/7 = 7cm. Area of base of cone = pi * r2 = 22/7 * 7 * 7 = 154 Sq. cm. Directions: Solve the following problems. Also write at least 5 examples of your own.
 Q 1: The diameter of a cone is 28cm. Find its area of base of cone.616 Sq. cm.618 Sq. cm.612 Sq. cm.614 Sq. cm. Q 2: The diameter of a cone is 49cm. Find its area of base of cone.1886.5 Sq. cm.1884.5 Sq. cm.1880.5 Sq. cm.1882.5 Sq. cm. Q 3: The diameter of a cone is 21cm. Find its area of base of cone.344.5 Sq. cm.348.5 Sq. cm.342.5 Sq. cm.346.5 Sq. cm. Q 4: The diameter of a cone is 70cm. Find its area of base of cone.3856 Sq. cm.3852 Sq. cm.3850 Sq. cm.3854 Sq. cm. Q 5: The diameter of a cone is 17.5cm. Find its area of base of cone.240.5 Sq. cm.None of these240.25 Sq. cm.240.625 Sq. cm. Q 6: The diameter of a cone is 63cm. Find its area of base of cone.3118.5 Sq. cm.None of these3128.5 Sq. cm.3028.5 Sq. cm. Question 7: This question is available to subscribers only! Question 8: This question is available to subscribers only!