3 years ago

Joseph leans a 20-foot ladder against a wall so that it forms an angle of 69° with the

Mathematics

1 answer:

barxatty [35]3 years ago

5 0

Answer:

18.67 ft

Step-by-step explanation:

| \

h | \ 20 ft

| \

|-- 69° \

---|----------------

For the 69° angle, h is the opposite leg, and 20 ft is the hypotenuse.

sin A = opp/hyp

sin 69° = h/20

h = 20 * sin 69°

h = 18.67

Answer: 18.67 ft

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