Help plz.

Giving ad is congruent to bc and angle bcd is congruent to angle adc prove d e is going to ce

Use the radius you found in part i (r=26.8 cm) with the surface area formula below to find the surface area of the sphere. show your work and round your answer to the nearest tenth. the surface area of a sphere: sa = 4πr^2 self note: 3.8.4

Nine more than four times a number is the same as one less than twice the number. find the number?