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1 answer:
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Answer:
Area of the figure = 350 cm²
Step-by-step explanation:
Area of the given figure in the picture = Area of big rectangle - Area of small rectangle A
Area of big rectangle = Length × Width
= 25 × 15
= 375 cm²
Length of mall rectangle = 25 - (5 + 15)
= 5 cm
Width of small rectangle = 5 cm
Area of small rectangle = 5 × 5
= 25 cm²
Area of the figure = 375 - 25
= 350 cm²
See the picture in the attached figure to better understand the problem
we know that
in the right triangle ABC
tan 80°=opposite side angle 80°/adjacent side angle 80°
tan 80°=BC/AC----->BC=AC*tan 80°-----> BC=75*tan 80°---> BC=425.35 m
the approximate height of the building=BC+<span>eye level
</span>the approximate height of the building=425.35+1.5----> 426.85 m
the answer is
the approximate height of the building is 426.85 m
we know that
in the right triangle ABC
tan 80°=opposite side angle 80°/adjacent side angle 80°
tan 80°=BC/AC----->BC=AC*tan 80°-----> BC=75*tan 80°---> BC=425.35 m
the approximate height of the building=BC+<span>eye level
</span>the approximate height of the building=425.35+1.5----> 426.85 m
the answer is
the approximate height of the building is 426.85 m