Question

a cube with side 7 cm is melted to form a cone of height 11m find radius of the base and lateral surface area of cone​

Answer 1

Answer:

Step-by-step explanation:

Three angles, A, B, C

:

A = 35

B + C = 145

B - C = 15

------------adding eliminates c, find B

2B = 160

B = 160/2

B = 80 degrees

Find C

B + C = 145

80 + C = 145

C = 145 - 80

B = 65 degrees

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:

Check this; 35 + 80 + 65 = 180; which is what every triangle should have