Answer:
you can apply percentages knowledge and reverse percentages knowledge. you can look at the formulas and it will be dead easy.
Step-by-step explanation:
Answer:
a regular trapezium
Step-by-step explanation:
please mark me as brainliest
Step-by-step explanation:
b=4, so
7²+4²=c²
49+16=c²
65=c²
Sq root both sides
8.06=c