Multiply each one by each of the others (separately), add them together and multiply by 2.
140*120=16800
140*4=560
120*4=480
16800+560+480=17840
17840*2=35680 units squared
Chat with our AI personalities
Surface area of rectangle: 15 times 8 = 120 square inches
the answer is 120
The area of a triangle is one half base times height. 1/2 b h = 120 1/2 130 h = 120 65 h = 120 h = 120/65 h = 1.85
60cm
The answer would be 480 because there are four sides and each is 120 so you just multiply 120 by 4!! ;)