Which line is perpendicular to LD

Mathematics

2 answers:

Sergeeva-Olga [200]2 years ago

8 0

Answer:

$\Large \boxed{\sf D}$

Step-by-step explanation:

Perpendicular lines are lines which make an angle of 90° with each other.

Line QY is perpendicular to line LD

slava [35]2 years ago

6 0

Answer:

C.) YT

Step-by-step explanation:

Parallel lines are horizontal lines

Perpendicular lines mean lines that are vertical

Hope this helps! :)

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Find the area of the figure.

givi [52]

these are just two semi-circles, one with a diameter of 22 and the other with a diameter of 30 - 22, or 8, and therefore their radius are 11 and 4 respectively.

$\bf \textit{area of a semi-circle}\\\\ A=\cfrac{\pi r^2}{2}~~,~~ \stackrel{r=11}{A=\cfrac{\pi 11^2}{2}}\implies A=\cfrac{121\pi }{2}~~,~~ \stackrel{r=4}{A=\cfrac{\pi 4^2}{2}}\implies A=8\pi \\\\ -------------------------------\\\\ \stackrel{\textit{total area of the figure}}{\cfrac{121\pi }{2}+8\pi }\implies \cfrac{121\pi +16\pi }{2}\implies \cfrac{137\pi }{2}$