Answer:
12 - (⅛)π cm²
Step-by-step explanation:
Rectangle + circle - semicircle
(4 × 3) + (pi × 1²) - ½(pi × 1.5²)
12 + pi(1 - 9/8)
12 - (⅛)π
The sum of angles of a triangle is 180°, so m∠K = 180° -45° -30° = 105°.
The Law of Sines tells you
... FL/sin(∠K) = FK/sin(∠L)
Solving for FL, we get
... FL = FK·sin(∠K)/sin(∠L)
... FL = a·sin(105°)/sin(30°) = a·sin(105°)/(1/2)
... FL = 2a·sin(105°) ≈ 1.93185a
The length of the actual dinning room is 6 metres.
<h3>How to find the actual length of the dinning room?</h3>
Tanner made a scale drawing of an apartment.
He used the scale 1 millimetre : 2 meters.
In the drawing, the dining room is 3 millimetres long.
Therefore,
1 millimetre = 2 meters
3 millimetres = ? metres
cross multiply
Hence,
length of the actual dinning room = 3 × 2 / 1
length of the actual dinning room = 6 metres
Therefore, the length of the actual dinning room is 6 metres.
Learn more about scale here: brainly.com/question/21165842
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A sweater is on sale for $18.00 which is 50% off of its original price, to simply get the original price, you add 18 to itself, since 18 is the half of the original price, so to get the original price you have to add the missing 50% which is 18 as well, so you got $18.00 - 50% and another $18.00 - 50%. add them together you get $36.00, which is equivalent to 100%.