Perimeter is how far around, so you are going to total the 2 lengths and 2 widths. A way to write that is P=2l+2w.
P = 2(5 5/8) + 2 (6 1/4)
2(5 5/8) = 10 10/8 or 11 2/8 or 11 1/4
2(6 1/4) = 12 1/2
P = 11 1/4 + 12 1/2
P = 23 3/4
Answer:
∠ACD= 109°
Step-by-step explanation:
∠A=38
180- ∠A= ∠B+C
180-38= 2∠B( ∠B=∠C) ( angles opposite to equal sides are equal)
142=2∠B
∠B=71
∠ACD=∠A+∠B ( exterior angle property)
∠ACD= 38+ 71= 109°
114:42
209:77
304:122
399;147
