jalenrussell321
13.03.2020 •
Mathematics
2 questions. Double points+BRAINLIEST IF CORRECT.
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Ответ:
806.5 and 137.5
Step-by-step explanation:
Question 1area of rectangle= length * width
= 9*16 = 144
area of trapezium= 1/2 ( sum of parallel sides) * height
the height = 35-20 = 15
= 1/2 * ( 16 + 31) * 15 =352.5
area of triangle= 1/2 *base*height
=1/2 * 31*20 =310
add all three of them= 144 + 352.5 + 310 = 806.5
total area is 806.5
Question 2area of right angled triangle= 1/2 * base* height
= 1/2 *11 * 7
=38.5
area of rhombus= base * height
=11 * 9
= 99
total area = 99 + 38.5 = 137.5
hence total area = 137.5
Ответ:
x²/144 + y²/95 = 1
Step-by-step explanation: