Answer: <em>23.7</em>
Step-by-step explanation:
<em>Let's calculate the acute angle at the base of the triangle:</em>
<em>180° - 90° - 40° = 50°</em>
<em>Find side x:</em>

Answer:
= 6.5
Step-by-step explanation:
You have to plug in 1.5 for x
->
4(1.5) + 0.5 = 6.5
Answer:
The answer is she lost 9 matches
Step-by-step explanation:
Answer:
Step-by-step explanation:
9t²-16u² = 3²t²-4²u² = (3t)²-(4u)² = (3t+4u)(3t-4u)
Answer:
Trapezium:
perimeter= 232
area= 2052
Triangle:
perimeter= 221
area= 4088
Step-by-step explanation: