64° i think because. its an iscoceles triangle so the bottom two angles are the same so you do 58+58=116 and because all angles in a triangle add to 180° you do 180-116=64°
Answer:
Rhombus
Step-by-step explanation:
The given points are A(−5, 6), B(−1, 8), C(3, 6), D(−1, 4).
We use the distance formula to find the length of AB.
![|AB|=\sqrt{(-1--5)^2+(8-6)^2}](https://tex.z-dn.net/?f=%7CAB%7C%3D%5Csqrt%7B%28-1--5%29%5E2%2B%288-6%29%5E2%7D)
![|AB|=\sqrt{16+4}](https://tex.z-dn.net/?f=%7CAB%7C%3D%5Csqrt%7B16%2B4%7D)
![|AB|=\sqrt{20}](https://tex.z-dn.net/?f=%7CAB%7C%3D%5Csqrt%7B20%7D)
The length of AD is
![|AD|=\sqrt{(-1--5)^2+(6-4)^2}](https://tex.z-dn.net/?f=%7CAD%7C%3D%5Csqrt%7B%28-1--5%29%5E2%2B%286-4%29%5E2%7D)
![|AD|=\sqrt{16+4}](https://tex.z-dn.net/?f=%7CAD%7C%3D%5Csqrt%7B16%2B4%7D)
![|AD|=\sqrt{20}](https://tex.z-dn.net/?f=%7CAD%7C%3D%5Csqrt%7B20%7D)
The length of BC is:
![|BC|=\sqrt{(-1-3)^2+(8-6)^2}](https://tex.z-dn.net/?f=%7CBC%7C%3D%5Csqrt%7B%28-1-3%29%5E2%2B%288-6%29%5E2%7D)
![|BC|=\sqrt{16+4}](https://tex.z-dn.net/?f=%7CBC%7C%3D%5Csqrt%7B16%2B4%7D)
![|BC|=\sqrt{20}](https://tex.z-dn.net/?f=%7CBC%7C%3D%5Csqrt%7B20%7D)
The length of CD is
![|CD|=\sqrt{(-1-3)^2+(6-4)^2}](https://tex.z-dn.net/?f=%7CCD%7C%3D%5Csqrt%7B%28-1-3%29%5E2%2B%286-4%29%5E2%7D)
![|CD|=\sqrt{16+4}](https://tex.z-dn.net/?f=%7CCD%7C%3D%5Csqrt%7B16%2B4%7D)
![|CD|=\sqrt{20}](https://tex.z-dn.net/?f=%7CCD%7C%3D%5Csqrt%7B20%7D)
Since all sides are congruent the quadrilateral could be a rhombus or a square.
Slope of AB![=\frac{8-6}{-1--5}=\frac{1}{2}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B8-6%7D%7B-1--5%7D%3D%5Cfrac%7B1%7D%7B2%7D)
Slope of BC ![=\frac{8-6}{-1-3}=-\frac{1}{2}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B8-6%7D%7B-1-3%7D%3D-%5Cfrac%7B1%7D%7B2%7D)
Since the slopes of the adjacent sides are not negative reciprocals of each other, the quadrilateral cannot be a square. It is a rhombus
2m = 25/2
m= 25/2 divided by 2
m= 25/4
3m= 25/4 x 3
3m= 75/4
so she does 3 miles in 18 3/4 hours
Answer:
Rs. 20350
Step-by-step explanation:
Total salary for the week
= Rs 20,000 + 10% of Rs 3500
![= 20,000 +\frac{10}{100} \times 3500\\\\= 20000+350\\= Rs\: 20350](https://tex.z-dn.net/?f=%3D%2020%2C000%20%2B%5Cfrac%7B10%7D%7B100%7D%20%20%5Ctimes%203500%5C%5C%5C%5C%3D%2020000%2B350%5C%5C%3D%20Rs%5C%3A%2020350)