Find the area for a triangle: base 5 cm, height 20 cm.

Mathematics

1 answer:

Gnesinka [82]3 years ago

5 0

Your answer: A=50cm²<span><span>Base: 5cmHeight: 20cm</span></span>A=hbb2=20·52=50cm²

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lions [1.4K]

Answer:

$2ft^{3}$

Step-by-step explanation:

V = length × width × height

SO...

V = 1ft × 1ft × 2ft

V = $2ft^{3}$

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2 years ago

Some big brain person pls solve 5 th one

artcher [175]

Answer:

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3 years ago

amirah ,who is at a point P ,observes a boat at pont B 1200m from P in direction 047 degrees. The boat is moving due north of B

Luda [366]

Answer:

about 2.81 km/h

Step-by-step explanation:

It can be useful to draw a diagram.

The lines pointing to due north from points B and P are parallel, so the angle BCP and the bearing of point C from P are the same, 30°. The angle BPC will be the difference of bearings of B and C at P, so is 47-30=17°. This is enough information to solve the triangle using the Law of Sines:

PB/sin(C) = CB/sin(P)

CB = PB·sin(P)/sin(C) = (1200 m)·sin(17°)/sin(30°) ≈ 701.7 m

The speed of the boat is then ...

x = distance/time = (0.7017 km)/(1/4 h) = 2.8068 km/h