Area of circle with diameter of 1 m? Area of circle with radius of 100cm? Area of circle with diameter of 100cm? area of circle with radius of 500mm?​

Atriangle has side lengths of 15 inches and 30 inches. it also has angles that measure 45º and 20º. which of the following identifies the possible third angle of the triangle? a. 15 in., 65º b. 45 in., 65º c. 17 in., 115º d. 14 in., 115º

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

Given a: b and b: c, find a: b: c. write the ratio in simplest form. a: b=6: 10 and b: c=21: 33