Answer:
first blank: B 25
second blank: C 50
third blank: D 75
Step-by-step explanation:
edge 2020
The base area of the cone is 78.5 cm².
The lateral area of the cone is 175.53 cm².
The surface area of the cone is 254.03 cm².
where
r = radius = 5 cm
Therefore,
base area = 3.14 × 5² = 78.5 cm²
where
r = radius
l = length
l² = 10² + 5²
l = √100 + 25
l = √125
l = 11.1803398875
l = 11.18 cm
Therefore,
lateral area = 3.14 × 5 × 11.18
lateral area = = 175.531336234
lateral area = 175.53 cm²
surface area = 3.14 × 5 (5 + 11.18)
surface area = 15.7 × 16.18
surface area = 254.026
surface area = 254.03 cm²
learn more on cone here: https://brainly.com/question/3236644
