Question

how to find area of an isocelese triangle when base and one of its equal sides is given

Answer 1

Answer:

1/2absinc

Step-by-step explanation:

since you have one of the equal sides, you now know all the sides of the triangle because two of the sides equal the same. From here, you can use the cosine rule which is CosA= (b squared+c squared- a squared)/2bc. Once you have found the angle, you can use the rule I provided under 'answer' to get the area of the triangle. If you want further help, please provide the measurements of the triangle : )