Answer:
b = 15°
Step-by-step explanation:
The base angles (c = ∠QRP) of ΔQPR are such that the sum of angles of the triangle is 180°. Since the triangle isosceles, the base angles are equal:
2c +60 = 180
2c = 120
c = 60 . . . . . . degrees; the base angle of ΔQPR
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Likewise, the base angle (∠SRP) of ΔSPR is ...
a = (180 -90)/2 = 45 . . . . . degrees
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The measure of angle b is the difference between the larger and smaller base angles:
b = c -a = 60° -45°
b = 15°
In logic and mathematics, a truth value, sometimes called a logical value, is a value indicating the relation of a proposition to truth.
9514 1404 393
Answer:
150 kL glutinous rice
300 kL ordinary rice
Step-by-step explanation:
Each half of the property is 3 ha/2 = 1.5 ha.
For the transplanted glutinous rice, John needs ...
(100 kL/ha)·(1.50 ha) = 150 kL
For the broadcast ordinary rice, John needs ...
(200 kL/ha)·(1.50 ha) = 300 kL