TRUE
A triangle cannot have more than one right angle
The triangle was known in China in the early 11th century by the mathematician Jia Xian (1010–1070)
A triangle has 3 medians and 3 altitudes. The outer angle of a triangle is equal to the sum of the opposite angles inside it. ∠ACD = ∠A + ∠B. Total Angle Properties: The sum of the three angles of the triangle is 180 °.
A triangle is a closed two-dimensional shape with three sides, three angles, and three vertices. Triangles are also polygons. The figure above is a triangle labeled △ ABC. Triangle example. Practical examples of triangles include sandwiches, traffic signs, hangers, and pool tables.
The three angles in the triangle, called the internal angles, always add up to 180 °. The sides that form an angle (the sides next to it) are called the adjacent sides of the angle. The opposite side (the side that crosses an angle and does not form part of it) is called the opposite side of the angle.
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rectangular sides and bottom of the tent have the dimensions
of 6 feet by 4 feet. The surface area of the tent is
square feet.
The surface area of the tent is 86 ft²
Therefore,
The base and top are triangular.
Therefore,
area of base = 1 / 2 bh = 1 / 2 × 4 × 3.5 = 7 ft²
area of the tope = 7 ft²
Therefore, the other three rectangular sides are calculated as follows:
area = 6 × 4 = 24 ft²
area = 6 × 4 = 24 ft²
area = 6 × 4 = 24 ft²
Therefore,
Surface area = 7 + 7 + 24 + 24 + 24 = 86 ft²
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Answer:
79.94688
Step-by-step explanation:
A spinner, divided into 5 congruent sectors with three of the sectors representing female students, is spun 12 times.
A coin, with heads up representing female students, is flipped 4 times.
A bag of 15 marbles, with 9 marbles representing female students, has a marble drawn 4 times with replacement.
A number cube, with odd numbers representing female students, is rolled 12 times.
Answer:
C. A bag of 15 marbles , with 9 marbles representing female students, has a marble drawn 4 times with replacement
Step-by-step explanation:
i took the test and got it right ;)
Answer:
the answerr is C
Step-by-step explanation:
Answer:
37.2
Step-by-step explanation:
when you turn the small triangle LMN to its right angle to cover the right angle of KLM, you find that they are similar triangles.
therefore the corresponding side lengths are at the same ratio.
LM/KM = MN/LN
LM = 24
MN = 13
we can get LN via Pythagoras of the small triangle
LN² + MN² = LM²
LN² + 13² = 24²
LN² = 24² - 13² = 576 - 169 = 407
LN = sqrt(407) = 20.174241
now back to our main problem
24/KM = 13/sqrt(407)
24×sqrt(407)/13 = KM = 37.2