12 *16 = 192
1/2 *20*10 = 100
192 +100 = 292 square units
To multiply two fractions together, multiply the numerators of both fractions together and same goes for the denominators.

Simplify.

So, 1/3 is the answer.
Answer:
the sum of the other two angle is 93
Step-by-step explanation:
180-87=93
Answer:
7
Step-by-step explanation:
You can skip 4 in that equation and you'll be left with 2x+12=0, which gives you 2x=-12 and finally, x=-6