First set up a proportion because they are similar triangles:
9/3x-20 = (72+9)/(56+3x-20)
9/3x-20 = 81/3x+36
9(3x+36) = 81(3x-20)
27x+324 = 243x-1620
1944 = 216x
x = 9
Answer:
<em> 2). 79°; 3). 65°; 4). 45°; 5) 73°</em>
Step-by-step explanation:
<em>m∠4</em> = 180° - (70° + 65°) = <em>45°</em>
<em>m∠3</em> = 180° - (45° + 70°) = <em>65°</em>
m∠2 + m∠3 = 180° - 36° = 144°
<em>m∠2</em> = 144° - 65° = <em>79°</em>
<em>m∠5</em> = 118° - m∠4 = 118° - 45° = <em>73°</em>
The answer is D because the sum of the length of the two smaller sides is greater than the length of the biggest side.
Answer:
The answer is False i^4=-1