129k views
2 votes
Please help with the question in the picture! And please don’t say 1.98. Cause tat isn’t the answer I already tried.

Please help with the question in the picture! And please don’t say 1.98. Cause tat-example-1
User Dnaq
by
7.7k points

2 Answers

3 votes

Answer:

| EF | = 1.97

Explanation:

If Angle FDE is 26 degrees, then Angle DFE is 90 - 26 (degrees), or 64 degrees.

Since cos 64 degrees = 0.438, the length of EF is 4.5 cos 64 degrees, or

| EF | = 4.5(0.438) = 1.971.

| EF | = 1.97 (to two decimal places)

User Indhu
by
8.1k points
2 votes

EF: sin(26°) x hypotenuse(4.5)

It already gives you an approximation for the sine of 26 degrees. I will just use that approximation.

EF = 0.90 x 4.5 = 4.05 units

answer: 4.05 units

User GoldieLocks
by
8.3k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories