In the diagram, m ZAFB=78° A B. E. D. Which angle is supplementary to ZAFB and what is its measure? Supplementary angles add up to 180 A. ZBFC is supplementary to ZAFB and m ZBFC =12°. ZDFE is supplementary to ZAFB and MZDFE=78°. 6 CFD is supplementary to ZAFB and MCFD=90°. ZAFE is supplementary to ZAFB and MZAFE=102°.

Q: In AGHI, HI GH and mZG = 45°. Find mZH. %3D

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Q: In AFGH, HF = GH and mZG = 47°. Find mZF.

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Q: 14. mZR 120° 40° >R

A: We know that if  two lines intersect outside a circle, then the measure of an angle formed by the…

Q: al and Adjacent 7.1 Find the measure of angle "b"

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Q: In the diagram below, mZA = 58°, mZB = 55° and mZC = 79°. Find mZD. В 55° E 58° A 79° C

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Q: If DE N DG and MZDFE = 39°, what is MZEFG? %3D G. D. MZEFG =

A: In ∆FED and ∆FGD, we have FD common ,  DE≅DG (given), ∠E = ∠G

Ratios

A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.

Trigonometric Ratios

Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.